Prevalence and associated risk factors for Hepatitis B and C viruses among refugees in Gambella, Ethiopia

Asian Perspective on Hepatitis B Virus and Hepatitis C Virus Elimination

Hepatitis B virus (HBV) and hepatitis C virus (HCV) infections remain significant public health challenges in Asia, affecting millions and contributing to substantial morbidity and mortality. The prevalence of these infections varies across the region, with factors such as vaccination coverage, healthcare infrastructure, and sociocultural barriers influencing the epidemiology of both viruses. The persistent burden of chronic HBV, particularly in older populations, and the evolving HCV genotype landscape highlight the need for targeted, region-specific strategies. Universal screening programs have emerged as essential tools for detecting undiagnosed cases and optimizing healthcare resource allocation. Given the overlapping epidemiology of HBV and HCV, comprehensive public health interventions tailored to the unique contexts of different Asian countries are crucial for achieving global elimination goals. This review examines the epidemiological trends, challenges, and opportunities for addressing HBV and HCV in Asia, emphasizing the importance of overcoming sociocultural barriers to improve prevention, diagnosis, and treatment efforts across diverse populations.

The Burden and Risk Factors Associated with Infectious Diseases among Refugees in a Camp for Migrants in Porto Alegre: A Cross-Sectional Survey

Refugees usually face a disproportionate burden of infectious diseases. Recently, Brazil has experienced an influx of refugees which demands the need for scaling up public health efforts to address the challenges. The research sought to study the burden and risk factors associated with infectious diseases among refugees received in the city of Porto Alegre. This was a cross-sectional study of 261 newly arrived refugees. The study sample was predominantly composed of Venezuelans (50.6%) and Haitians (44%), male (146: 56.7%), single (30.7%), with an average age of 33.38 (± 7.30) years. The average schooling was 10.42 (± 2.09) years. Diseases with the highest prevalence were influenza, whooping cough, diphtheria, and tuberculosis. There was significant association between the country of origin and presence of symptoms for infectious and contagious diseases, which warrants targeted interventions for reducing the incidence of these diseases among refugees in Brazil.

Knowledge, attitude, and practice towards hepatitis B and C virus infection and associated factors among adults living at selected woredas in Gamo Zone, Southern Ethiopia: a cross-sectional study

BACKGROUND

Hepatitis is an inflammation of the liver tissue. It is one of the serious public health problems. Though an individuals' knowledge, attitude, and practice level is very vital in order to ensure the control of its adverse health impacts, little is known regarding these issues in the community level. Therefore, this study was aimed to assess knowledge, attitude, and practice towards hepatitis B and C virus infection and associated factors among adults living at selected woredas in Gamo Zone, Southern Ethiopia.

METHODS

Community based cross-sectional study design was conducted among 633 adults living at selected woredas in Gamo Zone, Southern Ethiopia. Data were collected by pretested, well-structured questionnaire. The collected data were checked, coded and entered into Epi-data version 4.6.0.2 and were exported to SPSS version 25 for analyses. Bivariable and multivariable logistic regression were done to identify independent factors associated with knowledge, attitude, and practice towards hepatitis B and C virus infection.

RESULTS

According to this study, 366(58.1%), 95% CI: (54.23-61.96) of the participants had good knowledge. 381(60.5%), 95% CI: (56.65-64.30) of the participants had favourable attitude. 317(50.3%), 95% CI: (46.40-54.23) of the participants had good practice. From factor analysis, sex, number of sexual partners, sharing sharp material, and vaccination status were significantly associated with knowledge; residence, occupational status, income level, sharing sharp material, and vaccination status were significantly associated with attitude; and residence, occupational status, and vaccination status were identified to be significantly associated with practice towards Hepatitis B and C virus infection.

CONCLUSION

Based on the study findings, it could be observed that good knowledge, favourable attitude, and good practice were indicated nearly above the half, only by half, and nearly above the half of the study participants respectively. Implementing actions that could increase awareness regarding limiting the number of sexual partner, not sharing sharp materials, and urbanization is recommended. Moreover, woreda administrators, and other related authorities should consider knowledge, attitude, and practice as an implementation area, and also it would be better to create an opportunities to promote vaccination practices.

Prevention, testing, and treatment interventions for hepatitis B and C in refugee populations: results of a scoping review

BACKGROUND AND AIMS

Refugees are at higher risk for hepatitis B (HBV) and hepatitis C (HCV), but often face unique healthcare barriers to vaccination, testing, and treatment. This scoping review aimed to identify and characterize HBV and HCV prevention and care services serving refugee populations globally.

METHODS

A literature search was conducted on Embase, Cochrane, and PubMed databases. Research studies published in English between January 2010 to July 2022 describing an HBV or HCV prevention, testing, or treatment intervention for refugees were included.

RESULTS

There were a total of 69 articles reporting viral hepatitis prevalence, implementation of services, or economic modelling. Of the 38 implementation studies, 14 were stand-alone HBV and/or HCV interventions, while 24 studies included HBV and/or HCV in an intervention targeting multiple infectious diseases and/or parasitic infections. Interventions commonly included a testing (n = 30) or referral (n = 24) component. Frequently reported features to promote program accessibility included bilingual services (n = 25), community partnerships (n = 21), and multidisciplinary staff members (n = 18), such as cultural and/or linguistic mediators, community health workers, community health leaders, lay health workers, local health staff, members of the refugee community, and social workers. The most commonly reported challenge was the transience of refugees (n = 5). Twenty studies noted funding sources, of which twelve reported governmental funding (not including national health insurance) and eight reported that refugees received national health insurance.

CONCLUSIONS

This is the first scoping review to characterize the types of hepatitis prevention, screening, and treatment interventions serving refugee populations globally. Published experiences of HBV and HCV services for refugee populations remain limited. Additional efforts are needed to disseminate models of hepatitis interventions for refugees to ensure access to care for this key population. To achieve hepatitis elimination globally, best practices must be identified and shared to expand access to hepatitis services for refugee populations.

Seroprevalence of Hepatitis C Virus Infection in North Korean Defectors Residing in Korea

BACKGROUND

This study aimed to investigate the prevalence rate of hepatitis C virus (HCV) infection and identify the demographic, and sociological characteristics and changes in awareness of HCV infection by participating the study for North Korean defectors residing in South Korea.

METHODS

This study prospectively enrolled participants. Demographic, sociological and clinical data, and questionnaire surveys focused on awareness of HCV infection were collected.

RESULTS

In total, 211 North Korean defectors participated in this study from September 2020 until June 2021. There were 174 women (82.5%), and the overall mean age was 48.9 years (range, 20 to 80 years). Of these participants, 112 (53.1%) had immigrated to South Korea since 2011. The overall prevalence of anti-HCV antibody among North Korean defectors was 1.9%. Thirty participants (14.2%) had hepatitis B surface antigens. A huge lack of awareness regarding HCV infection has been observed among North Korean defectors.

CONCLUSION

This is the first prospective study to investigate the prevalence rate of HCV infection among North Korean defectors residing in South Korea. As North Korean defectors are a vulnerable group concerning HCV infection, they may benefit from HCV screening policies and educational interventions for HCV infection.

Sero-prevalence and associated factors of sexually transmitted infections among youth-friendly services Attendees

BACKGROUND

Worldwide, more than one million peoples acquire sexually transmitted infections (STIs). The burden of STIs and the youth awareness level on the transmission of STIs is under investigated in Sidama Regional State.

OBJECTIVE

To determine the seroprevalence of STIs such as hepatitis B surface antigen (HBsAg), Anti-hepatitis C virus (HCV) antibodies, Human Immunodeficiency virus (HIV) seroprevalence, and syphilis and to determine associated factors among youth-friendly services Attendees at selected health facilities in Hawassa city, Ethiopia.

METHODS

A multicenter cross-sectional study was conducted among 416 randomly selected youth attending youth-friendly services at selected health facilities from May to August 2021. To collect the background characteristics of participants an interviewer-administered questionnaire was used. Blood samples were collected, processed, and tested using Advanced Quality One Step rapid colloidal gold immunochromatographic assay for detection of antibodies for syphilis and hepatitis C virus infection, and hepatitis B virus surface antigen. For the diagnosis of syphilis Rapid Plasma Reagin was also used. HIV1/2 STAT PAK, HIV1/2/O ABON and HIV1/2 SD Bioline were used for testing antibodies for HIV infection. Data entry and analysis were performed using Statistical Package for the Social Sciences (SPSS) version 20.0 software. A crude and adjusted odds ratio with a 95% confidence interval (CI) was computed to identify associated factors.

RESULTS

The overall seroprevalence of STIs was 11.5% (48/422), with a 95% CI: (8.7-14.9). Out of the 48 positive results, the proportions of HBsAg, Anti-HCV, HIV, and syphilis were 56.3% (27/48), 27.1% (13/48), 10.4% (5/48), and 6.3% (3/48) respectively. Out of 416 participants, 17.1% responded that it is safe to have sex without using a condom. The Odds of developing STI among female participants, participants who did not identify alcohol intake as a risk factor for STIs, and those who engaged in transactional sex were (AOR = 2.989: 95% CI: 1.27, 7.02), and (AOR = 2.393, 95% CI: 1.18, 4.81) and practice of transactional sex (AOR = 5.527, 95% CI: 1.62, 18.75).

CONCLUSIONS

STIs are common among youth-friendly services Attendee in Hawassa city The overall STI was significantly associated with sex (females), not able to identify alcohol intake as a risk factor, and practice of transactional sex. High number of (n = 289, 69.5%) participants think that the use of condoms is not effective in preventing STIs and they engage in sexual activity without using condoms.

Current Challenges and Future Perspectives of Diagnosis of Hepatitis B Virus

It is estimated that approximately 260 million people worldwide are infected with the hepatitis B virus (HBV), which is one of the leading causes of liver disease and liver cancer throughout the world. Compared with developed countries, low-income and middle-income countries have limited access to resources and advanced technologies that require highly specialized staff for HBV diagnosis. In spite of the heavy burden caused by hepatitis B virus, 90% of people are still undiagnosed. The World Health Organization (WHO) goal of eliminating hepatitis B by 2030 seems very difficult to achieve due to the existing diagnostic infrastructure in low-resource regions. The majority of diagnostic laboratories still use hepatitis B surface antigen (HBsAg)-based tests. WHO's elimination plan is at risk of derailment due to phases like the window period, immune control, and occult HBV infection (OBI) not being detected by standard tests. Here, in this article, we are focusing on various diagnostic platforms for the better diagnosis of HBV. The aim of the elimination of HBV can only be achieved by detecting all phases of HBV infection, which can be executed by a combined approach of using new marker assays along with advanced pretesting and testing methods.

Prevalence of hepatitis B virus amongst refugees, asylum seekers and internally displaced persons in low- and middle-income countries: A systematic review

Hepatitis B, caused by the hepatitis B virus (HBV), is a global public health issue that affects 290 million people worldwide. Most people with hepatitis B are in low- and middle-income countries (LMIC), where health systems and resources are often constrained. Refugees, asylum seekers and internally displaced persons (IDPs) often face barriers in seeking health care and are a priority population at risk of hepatitis B. No systematic review to date has evaluated the prevalence of hepatitis B amongst refugees in in LMIC. We undertook a systematic review of the literature identifying 28 studies addressing this topic. Though few studies on this topic exist, the available evidence suggests a high prevalence amongst refugees in LMIC, with wide variation between and within countries. Possible risk factors contributing to hepatitis B include unsafe injections, low immunization coverage, low awareness, mother-to-child transmission, and limited health services. Further study is needed to better understand the prevalence and risk factors for hepatitis B amongst refugees in LMIC, to inform public health responses. Vulnerable populations such as refugees are an important group to consider in national and global efforts to eliminate hepatitis B.

Prevalence and factors associated with hepatitis B and C virus infections among female Sex workers in Ethiopia: Results of the national biobehavioral Survey, 2020

BACKGROUND

Hepatitis B and C virus infections are endemic diseases in sub-Saharan Africa, the region with the highest prevalence of these infections in the world. Female sex workers are exposed to sexually transmitted infections, including hepatitis B and C, because of their high-risk sexual behavior and limited access to health services. There are no large-scale data on the prevalence of hepatitis B and C virus infections among female sex workers in Ethiopia, a critical gap in information this study aimed to fill.

METHODS

This was a cross-sectional, biobehavioral survey conducted from December 2019-April 2020 among 6085 female sex workers aged ≥15 years and residing in sixteen (16) regional capital cities and selected major towns of Ethiopia. Blood samples were collected from the participants for hepatitis B and C virus serological testing. The data were collected using an open data kits (ODK) software and imported into STATA version16 for analysis. Descriptive statistics (frequencies and proportions) were used to summarize data on the study variables. Bivariable and multivariable logistic regression analyses were conducted to determine the strength of association between independent variables (risk factors) and the outcome (hepatitis B and C virus infection). Adjusted Odd ratio (AOR) was used to determine independent associations, 95% confidence interval to assess precision of the estimates, and a P value ≤ 0.05 to determine statistically significant.

RESULTS

The prevalence of hepatitis B and C infections among the 6085 female sex workers was 2.6% [(95% CI (2.2,2.8)] and 0.5% [(95% CI (0.4,0.7)], respectively. Female sex workers who had 61-90 and ≥91 paying clients in the past six months [(AOR = 1.66; 95% CI, (0.99, 2.79); P = 0.054] and [(AOR = 1.66 95% CI, (1.11, 2.49); P = 0.013], respectively, age at first sex selling of 20-24 and >25 years [(AOR = 1.67; 95% CI, (1.14, 2.44); P = 0.009)] and [(AOR = 1.56; 95% CI (1.004, 2.43); P = 0.048)], respectively, known HIV positive status [(AOR = 1.64; 95% CI (1.03, 2.62); P = 0.036] were significantly associated with the prevalence of hepatitis B virus infection. Similarly, hepatitis C was significantly associated with, age at first sex ≤15 years and age 16-20 years [(AOR = 0.21; 95%CI (0.07,0.61); P = 0.005)] and [(AOR = 0.18; 95% CI (0.061, 0.53); P = 0.002)], respectively, known HIV positive status [(AOR = 2.85; 95%CI (1.10,7.37); P = 0.031)] and testing positive for syphilis [(AOR = 4.38; 95% CI (1.73,11.11); P = 0.002)], respectively.

CONCLUSION

This analysis reveals an intermediate prevalence of hepatitis B and a low prevalence of hepatitis C infection among female sex workers in Ethiopia. It also suggests that population groups like female sex workers are highly vulnerable to hepatitis B, hepatitis C, and other sexually transmitted infections. There is a need for strengthening treatment and prevention interventions, including immunization services for hepatitis B vaccination, increasing HCV testing, and provision of treatment services.

A study of HBV infection and its risk factors in pregnant women in Zakho city, Iraq

Background

Despite vaccine and antiviral treatment availability, hepatitis B virus (HBV) continues to circulate among pregnant women in Iraq. HBV spread is due to many factors. This study evaluated HBV prevalence among pregnant women and Syrian refugees residing in Zakho city, Iraq, and identified risk factors associated with infection.

Materials and methods

Demographic data were collected from 2,054 pregnant women via a questionnaire assessing risk factors associated with HBV infection. Blood samples were collected for hepatitis B surface antigen (HBsAg) and were screened using an enzyme-linked immunosorbent assay.

Results

Tests revealed that 1.1% of pregnant women in Zakho and 11.3% of Syrian refugees (p = 0.001) were positive for HBsAg. The average age of HBsAg-positive patients was 31.4286 ± 6.6746 years (p = 0.002). Average rates of parity and abortion in HBV-infected subjects were 3.5 ± 2.6874 and 0.1785 ± 0.5479, respectively (p = 0.044 and 0.012, respectively). The following were identified as associated risk factors for HBV infection: nationality, (Zakho versus the city centre), tattoos, and polygamy (p = 0.001, 0.03, 0.007, and 0.001, respectively). No significant associations between HBV prevalence and blood transfusion, prior injection history, dental procedures, or surgical procedures were found.

Conclusion

The prevalence of HBV infection among Syrian refugees was higher than that of indigenous participants. Several risk factors were significantly associated with HBV positivity, which may facilitate effective preventive program implementation and decrease mother-to-child transmission risk. This will likely reduce infant and childhood HBV chronicity, and mortality rates.

Undiagnosed Seroprevalence of Hepatitis B and C Virus Infections in the Community of Wolaita Zone, Southern Ethiopia

Background

Despite Ethiopia's hepatitis endemic status with intermediate to hyperendemic level, there is no national strategy for monitoring, preventing, and controlling viral hepatitis. In order to advise community-based intervention programs, studies on the magnitude, determinant factors, and understanding of indigenous social organization are important. Thus, this study examined undiagnosed seroprevalence and associated factors for HBV and HCV infections among community members in Wolaita Zone, Southern Ethiopia.

Methods

A cross-sectional study was conducted on 320 individuals from randomly selected two woredas in the Wolaita Zone to determine the magnitude of HBV and HCV. Multistage sampling was used to select participants. Relevant clinical and sociodemographic data were collected using a structured questionnaire. One test strip technique was used for the screening of hepatitis B surface antigen and for antibodies against HCV. Both tests were confirmed by ELISA methods. The associated factors were assessed using bivariate and multivariate logistic regression analyses. P-values less than 0.05 were considered statistically significant.

Results

The seroprevalence for HBV infection was 6.6% (95% CI: 4.22%, 8.69%) using a one-step HBsAg test strip and 5.6% (95% CI: 3.47%, 8.58%) using confirmatory test (ELISA). The two tests had a very good agreement (K = 0.918; SE = 0.047; P < 0.001). The overall seroprevalence for HCV infection was 1.9% (95% CI: 0.9%, 3.0%). All four of the one-step HCV test strip positives were also positive by ELISA. One (0.3%) of the participants was co-infected with HBV and HCV. Hospital admission (AOR = 0.22; 95% CI = 0.5-0.95) and needle stick (AOR = 0.15; 95% CI = 0.07-0.72) were independently associated with HBV infections.

Conclusion

According to the current study, in Wolaita community, there is endemic to HBV at a higher-intermediate level and to HCV at a low level. It would be imperative to increase awareness of transmission modes and prevention of infection, as well as vaccination, in order to reduce the burden of both HBV and HCV.

Rapid Diagnostics for Hepatitis B and C Viruses in Low- and Middle-Income Countries

The global health challenge posed by hepatitis B virus (HBV) and hepatitis C virus (HCV) persists, especially in low-and-middle-income countries (LMICs), where underdiagnosis of these viral infections remains a barrier to the elimination target of 2030. HBV and HCV infections are responsible for most liver-related mortality worldwide. Infected individuals are often unaware of their condition and as a result, continue to transmit these viruses. Although conventional diagnostic tests exist, in LMIC they are largely inaccessible due to high costs or a lack of trained personnel, resulting in poor linkage to care and increased infections. Timely and accurate diagnosis is needed to achieve elimination of hepatitis B and C by the year 2030 as set out by the World Health Organization Global Health Sector Strategy. In this review rapid diagnostic tests allowing for quick and cost-effective screening and diagnosis of HBV and HCV, are discussed, as are their features, including suitability, reliability, and applicability in LMIC, particularly those within Africa.

Seroprevalence of Hepatitis C Viral Infection in Ethiopia: A Systematic Review and Meta-Analysis

BACKGROUND

Hepatitis C virus is a highly genetically heterogenous bloodborne pathogen that is responsible for acute and chronic hepatitis. Globally, an estimated 71 million population is chronically infected with this virus from which 399,000 people die every year. Its prevalence is high in Ethiopia and varies from region to region, even among different studies within a region.

METHODS

Electronic databases, including Science Direct, Medline, HINARI, African Journals Online, TRIP database, African Index Medicus, and Directory of Open Access Journals, searched from 2010 to 2020 and published articles were included. Due to evidence of considerable heterogeneity, the pooled prevalence of anti-HCV was analyzed using the random-effects model. The possible sources of heterogeneity were analyzed through subgroup analysis, sensitivity analysis, and meta-regression. Funnel plots and Egger's test statistics were used to determine the presence of publication bias.

RESULTS

The analysis of 56 articles showed that the prevalence of anti-HCV in Ethiopia ranged from 0% to 22%. The pooled prevalence estimated was 2% (95% CI 2.0-3.0), and the meta-regression statistics indicated that the diagnostic method (p=0.037), study group (p=0.005), and level of bias (p=0.035) showed statistically significant association with the outcome variable. The sensitivity analysis claims no influence on the overall effect estimate while removing a single study from the analysis at a time. Egger's test statistics (p ≤ 0.001) declare the presence of publication bias that is handled using time and fill analysis.

CONCLUSIONS

The pooled prevalence of anti-HCV in Ethiopia was high. Predictor variables, including the diagnostic method, study group, and level of bias, showed a statistically significant relationship with the outcome variable. Strengthening the scope of existing prevention and control programs and implementing novel approaches, including screen-and-treat, could significantly help to tackle this critical public health issue. The study provides a current estimate which is valuable for policymakers and other responsible bodies.